Built to order · New York & New Jersey
Client websites, sales and workflow automation, live data maps, AI phone tools, 3D product viewers and browser games, built by one person. Most of it opens in one click, so you can judge the work rather than the pitch.
All of it custom code. No page builders, no templates.
One minuteSix things to open, one line each
An Austin advisory firm's site, then its outreach desk: the sending domain authenticated by DNS query, 502 organisations researched down to 228 verified addresses, a CRM built and loaded, and a do-not-send gate on every batch.
Open the live siteA small business's week of social posts in one sitting: drafted for thirteen networks, stopped when a caption breaks the owner's own rules, published only after the owner approves it from their phone.
See PostFloA reader forum on Discourse for a daily news digest. The owner's morning email turns into story cards on its own, the forum mail is authenticated on a domain of its own, and running it costs him no more time than the email already did.
Open the live siteChecks a nonprofit's grant application against the funder's published rules before anyone submits it. On a real nonprofit's October packets it caught 26 of the 31 mistakes the team had found by hand, and raised no false alarms on 12 live packets.
Take the tourEight pages for a New York housing policy consultant: her CV, her public record and her 2021 testimony reproduced in full, in light and dark, with no framework and no monthly fee to keep it alive.
Open the live siteGets a small business paid for work it already did: terms in writing, the invoice, reminders in the owner's words, a Zelle payment noticed from the bank's email, and a demand letter when a client goes quiet. The owner approves and sends every message.
Take the tourFeaturedOne build, with the film
Live product · post.workflohq.com ·
Runs a small business's social media. It drafts a week of posts for 13 networks, shows each one in that network's own posting screen, and publishes only what the owner approves from their phone. Comments and messages from every account land in one inbox.
Every post is checked against the business's own rules before it goes anywhere. A draft that names a price the owner never wants posted is stopped until it comes out, and nothing is scheduled, approved or published while a rule fails.
An agency running several businesses sees all of them on one screen, and each client sees only their own.
What I doRange and stack
Eight things I have shipped, not eight things I have read about. Every one of them points at something on this page you can open and poke at.
Storefronts, booking pages, service sites. Custom code, so they load fast on a phone and nobody pays a monthly fee to keep them alive. See Velvet A. Johnson-Ross, 512 Capital Partners, Jess Fillyo and Grim Reaper Gardens.
An outreach desk that researches a list, qualifies it and loads the CRM before anyone picks up the phone. A client's week of social posts on one calendar, approved from their phone before anything goes out. Reminders that fill a cancelled chair, a board that shows which leads are going stale, the report somebody retypes every Monday. See 512 Capital Partners, PostFlo, Sales Floor Board and No-Show Saver.
A real model in the page instead of a photo shoot: change the fabric with no reload, then stand the thing in your own room from a phone browser, with no app to install. See Holloway and Barham.
Public data pulled on load and turned into something readable, with the colours and the axes chosen on purpose. Sometimes that data is moving: Trains Now decodes the MTA's realtime feed and Docks Now reloads every fifteen seconds.
A page that listens, answers out loud, and knows when to stop talking and take the booking. See Night Desk.
Physics on nearly a million cells at sixty frames a second in a browser tab, with heat, fire and chemistry running between the materials. See Granulab, and Vivarium under Games.
Room codes, a server that holds the truth, and two people in different houses watching the same board move. See Ant Raid.
Installed to a phone home screen, opening offline, keeping your progress on the device instead of on somebody else's server. See FALA.
The stack, by name
Plain HTML, CSS and JavaScript wherever that is enough, which is most of the time. The rest of what this page runs on, named so it can be searched for:
Selected workSites, systems and concepts · 2026
Sites and systems built for clients, and a few built as concepts to show what a page could be. Each card says which it is, and when.
Client site · velvetjohnsonross.com ·
A site for a New York housing justice and policy consultant. Eight static pages carrying her CV, her public record, her 2021 testimony reproduced in full, and the #HerHousing podcast with its research and its budget.
No build step, no framework and no dependencies. The palette and the type are taken from her own pitch deck, and one toggle carries the whole site between light and dark.
Client site · vorktnews.com ·
A reader forum for a daily news digest that used to go out as plain email. Discourse on a domain of its own, with a theme built from the mockup the client signed off. Delivered in two phases, live since September 2026.
A decorator turns his morning email into story cards without his readers ever seeing markup. Four rooms, moderation rails set so his judgment scales past what he can read himself, and forum mail authenticated so it never touches his main domain.
Client site and sales development · 512capitalpartners.com ·
An Austin strategic advisory firm. I built the firm's website, then the system behind its outreach desk: the sending domain authenticated before the first email went out, a research pipeline in Python that took a list of 502 organisations down to 311 qualified and 228 verified addresses, and a CRM built and loaded.
SPF corrected, a 2048-bit DKIM key live, DMARC reporting on, each checked by DNS query rather than taken on trust. Every batch passes a gate against the do-not-send file before anyone is written to.
Client site · hosted here for her ·
A booking site for a New York model. Work grid, runway reel, measurements and downloadable digitals in one place, so an agency can see everything without asking for it.
Open the live site
Client site · grimreapergardens.com ·
A working storefront for a cannabis seed breeder upstate, rebuilt from the one he had and now live on his own domain, with his own strains, photographs and posts filled in. Age gate, a strain gallery with filters, genetics, consulting and a mailing list.
Open the live site
Client site · nwcommunitycenters.org ·
A new site for a Tacoma nonprofit serving immigrant, refugee and low-income families since 1987. It replaced their Wix pages with thirteen static pages in English and twelve in Korean, covering the STEM Club, events and class registration. Live on their own domain since November 2026.
Families register by email or text: the form opens their own app with the answers filled in, and a QR code goes straight to it. All 39 old addresses redirect to their new pages, so existing links keep working, and the fonts are hosted with the site.
Site mockup · proposal, not the live site ·
A proposal that redoes the Wix site of a flash-frozen cannabis flower brand. The home page is a walk through a ship drawn in CSS: each section is a deck with a window onto a real sky, and an iris, a corridor, a lift or a set of shutters carries you to the next.
Eight static pages behind an age gate that plays as being beamed aboard. The How it works page draws water's phase diagram from published equations, and a slider follows the flower from ice straight to vapour. The sky comes from NASA, ESA and ESO photographs, and the flower is the client's own.
Storefront concept · a label that does not exist ·
A clothing label I made up to show what a small storefront can be when it keeps to one idea: six pieces for the ride in, each named for a stop on a line that was never built. The home page is the window of the car, drawn live: pick a stop on the strip map above it and the train rides there, pulling in at a station with the piece on its poster wall. Six product pages, a lookbook, a bag, and nothing for sale.
One typeface, no framework, no cookies, and a strict content security policy. The photographs were generated with a diffusion model on this machine under one rule, no faces, and the technical flat on each product page was drawn by hand in SVG.
Built to orderLive products and working demos
I build software around the way a business already runs: the reminder texts, the job board, the social calendar, the report somebody retypes every Monday. PostFlo is a live product. The others are working demos on made-up data that you can click through, and each one can be rebuilt around your own business.
Live product · post.workflohq.com ·
Runs a small business's social media. It drafts a week of posts for 13 networks, checks each one against the business's rules, and publishes what the owner approves.
Comments and messages from every account land in one inbox, and on the 1st of each month the owner gets a report of what went out and how people responded. An agency running several businesses sees all of them on one screen, and each client sees only their own. It also connects to Zapier, Make or an AI assistant, so posts can come from tools the business already uses.
Working demo · teams on GoHighLevel ·
Shows a sales manager who is falling behind. It tracks uncalled leads, stale leads and each agent's calls on a GoHighLevel sales floor.
The demo runs on 22 agents and 1,789 leads, all generated. On a live account every number comes straight from GoHighLevel, the board opens from GoHighLevel's own sidebar, and TV mode puts it on the wall.
Audit on request · local businesses ·
Audits a business's website. It reports the fixes that matter most, the speed on a phone and what Google can read, with a time on each fix.
It reads every page, runs Google's own speed test and checks the site against more than a hundred rules. The picture is the report it wrote about a test site built for it.
Working demo · immigration law firms ·
Checks an immigration filing before it goes in the mail. It catches wrong fees, old forms and missing signatures or evidence, and blocks sign-off until the packet passes.
168 rules across five case types, from family petitions to Schedule A petitions for nurses, each with its source and the date it was checked. A rule pack is refused 30 days after its check, because USCIS changes fees and forms without notice. A test set of 288 invented packets with 227 planted mistakes runs in the page: every planted mistake caught, no false alarms. The demo is read-only, on invented packets, and built for attorneys.
Working demo · small nonprofits ·
Checks a grant application before it is submitted. It reads each document against the funder's rules and sends mistakes back with the fix.
186 rules from 13 funders, each quoted from the funder's page or form. Tested on a real nonprofit's October applications, it caught 26 of the 31 packet mistakes the team had found by hand and part of the other 5. It also found some they missed, such as an outdated form edition and answers over a form's character limit, and raised no false alarms on 12 live packets. The demo runs on an invented nonprofit.
Working demo · freelancers and small studios ·
Gets a small business paid for finished work. It writes the invoice and the reminders, spots payments in the bank's email, and drafts a demand letter. The owner approves every message.
Every reminder passes a rules check first: a signed agreement, the amount on the ledger, the client's consent, quiet hours and no unread reply. When one fails, the desk refuses and shows the fix. Late interest comes only from the signed agreement, within New York's limits, and a payment email counts only once the owner says the money is there, because fake payment emails are a common scam. The demo is a recorded copy of the desk on an invented studio, with a guided tour that replays real button presses.
Working demo · medical practices and billing companies ·
Checks what insurers paid a medical practice against what each payer's contract says, line by line from the remittance file. For every line paid short it quotes the clause, counts the appeal deadline and drafts the appeal. The biller approves and sends each one; the desk never submits anything.
It catches a rate below the fee schedule, a multiple-procedure cut on the wrong line, a line dropped as bundled that should pay, a bilateral procedure paid at 100 percent and units cut. It won't chase a bundle the federal coding edits allow or an appeal past its window, and it works out New York's prompt-pay interest on late claims. A test set with 35 planted underpayments runs in the page: every one caught, no false alarms. The demo is 90 days from an invented practice, so no figure in it is a typical result.
Working demo · small trucking fleets ·
Works a small fleet's quarterly IFTA fuel tax return from the two exports the carrier already has, the ELD's miles by state and the fuel card's receipts, and stops the filing on every gap an auditor would find. Between quarters it watches each driver's qualification file and says which document lapses next and who may not drive today.
The return is worked in whole cents and rounds the way the form does, so a return worked by hand matches it to the cent, at the rate table IFTA publishes each quarter. It leaves DEF and reefer fuel off, catches a receipt counted twice and fuel bought in a state the truck never entered, and names the section of 49 CFR behind every driver document. Everything it files is remembered between runs. The demo runs the real desk in your browser on an invented carrier.
Working demo · commercial lines insurance agencies ·
Reads a certificate-of-insurance request as it arrives by email, finds the insured's policies, checks them against the holder's contract, and either drafts the certificate for the CSR to approve or lists every gap with its fix. The CSR issues every certificate. The desk never shows a limit the policy does not carry.
It matches a loosely written or trade name to the insured on file and refuses when two fit, takes the contract on file as the requirement, and catches an expired policy, a limit below the contract and a missing additional-insured endorsement. The certificate is drawn on the standard liability layout, stamped with the agency's name, and checked before it is written. The demo runs the real desk in your browser on an invented agency with eleven requests, six ready and five on hold.
Working demos · dentists, salons, restaurants ·
Keeps the calendar full and the phone answered. One texts reminders and fills cancellations from a waitlist. The other answers after hours and takes reservations.
Both demos run in your browser on made-up businesses: a dental office's morning, with the money each saved appointment keeps on the books, and a late-night kitchen you can talk to out loud or type to. Nothing is recorded.
Live app · real estate agents ·
Shows a home seller what they will walk away with. It takes off the commission, New York's transfer tax, the attorney and the mortgage payoff.
The seller sees the numbers before anyone contacts them, so the agent hears from people who already know what a sale is worth to them.
Want one built around your business? Email me the job your staff repeats most, and I'll tell you what it would take.
Email me the jobLive dataFetched on load
Not screenshots of data, and not a chart somebody exported last quarter. Every one of these fetches the numbers when you open it, plots them, and hands you the filters. Two of them redraw themselves while you watch, because the feed behind them changes every few seconds. The globe at the top is the one exception: its records come from published archives, not a feed, and it names the source of every one. Open one and start dragging.
Every dot is a real train, placed on the track between the station it just left and the one it is heading for. Drag the map around. The full page adds the lines, the counts and what each train is doing.
Open Trains NowResearch globe · 300,000 years ·
262,000 dated records on one globe: ancient genomes, radiocarbon dates, cities, roads and languages, each a published record with its citation one click away. Drag the timeline and the ground changes with it.
At the last glacial maximum the sea is 120 metres lower, ice sits over Canada and northern Europe, and you can walk from Siberia to Alaska. Pick a journey and the camera flies it, low toward the horizon with the clock running: out of Africa to Australia, across the land bridge into the Americas, Taiwan to Polynesia. One hand-written WebGL page, with no framework and no build step.
Live map ·
Every restaurant in New York City on one map, 30,075 of them, drawn from the city's own inspection records. Filter by borough, by cuisine, or down to a regional kitchen, search for a dish rather than a name, and the map redraws as you go.
There are walking crawls built on top for when you want an afternoon planned rather than a single dinner. It runs on vector tiles, so panning a city's worth of points stays smooth on a phone.
Live dashboard ·
Every 311 complaint filed in the last seven days, fetched from NYC Open Data the moment you load it. Nothing is stored and nothing is stale.
Open it Read the sourceLive subway map ·
Every train the MTA is reporting, right now, on the line it is running. The agency publishes protobuf with no coordinates in it, so the page decodes the feed itself and works out from the published schedule which two stations a moving train is between.
The feed says only "stopped at 42 St" or "in transit to 34 St". The position comes from the timetable, drawn on the track, refreshed every 25 seconds, and the dots ease across.
Live bike share ·
Every Citi Bike dock in the city, refreshed every fifteen seconds. Ask it for a bike or for a dock and the colours flip to answer the question you actually have.
Open the board
Sales and values ·
What actually sold on any block in the five boroughs, with the price, the date, the square footage and what that works out to per foot, straight from the city's own register.
Nassau and Suffolk are covered too, which took some digging: the state publishes no individual sale prices out there at all, so the page works them back out of the assessment roll using each town's own published ratio.
Species map ·
Every ant anyone has recorded, anywhere on Earth, from museum drawers and phone photographs alike. Pan to a place and it names what lives there.
Go lookingGames and 3DNot client work
Not client work, and I am not pretending otherwise. They are here because the hard parts of a game, physics that has to hold up, netcode, and making a thing feel good under your hand, are the same parts that decide whether a website is worth paying for. Four of the six games you can play in a browser right now. Under them: the ant models the first one runs on, then software that turns product photographs into something you can stand in your own room.
Simulation · in development ·
A formicarium in a browser tab. A wild queen comes down from her nuptial flight, digs in, seals herself away and raises the first workers on her own body reserves. Every ant after that is an individual with an age, a job and a stomach.
The nest they dig is measured against published casts of real big-headed ant nests. The simulation is deterministic and snapshot-safe, so a saved tank replays tick for tick, and the ants in the modelling block below are the same rigs, drawn here at their real size, three millimetres for a minor. Three.js and WebGL, no engine.
Playable ·
A falling sand sandbox in the Powder Game line. More than 40 materials with heat, fire and real chemistry between them, plus a maker for inventing your own element and its reactions. Nearly a million cells, 60 frames a second, no plugin.
Play it Read the source
Playable ·
A tower defense where the towers are ants and the trail runs across a picnic blanket. Six maps, one for each hour of the day. Every sprite is drawn in code and every sound is synthesised, so the whole game is a few hundred kilobytes and works offline.
Play it Read the source
Multiplayer · source only ·
The other half of Grubs TD: you are the wave. Two colonies, three roads, sugar to spend on the ants you send and the ones you keep home. You get a room code and send it to a friend.
It needs a socket held open, so it cannot live on static hosting the way the rest of this page does. The whole thing, game server included, is on GitHub.
Playable · in development ·
An ant colony MOBA: five against five, three lanes, a Queen to defend on each side. Twenty-four champions so far, each with its own body plan, kit and talents, played over a real connection with accounts, Elo and ranked seasons.
The simulation is deterministic, so the same seed replays a match tick for tick on any machine, which is what makes replays and a mid-game reconnect possible without trusting the client.
Free hosting sleeps between visits, so the first click can take twenty seconds to answer. This page nudges it awake as you scroll down.
Play it
Playable · idle clicker with AR ·
You poke a soft, toon-shaded mushroom. It squishes, puffs spores, and the spores buy growers that fill a little forest around it. On a phone, one tap opens the camera and puts the mushroom on your own table, and you keep playing it there.
In AR the game's camera follows the phone, so every poke, the physics and the spores run on the same code as on the screen. Once the mushroom is down, a camera button takes a photo of it on your table, framed like a journal page, to share or save. Every skin behaves like the material it looks like, measured in simulation: jelly jiggles for ages, velvet sinks like a pillow, clay keeps its dents. More than 600 tests and a harness that plays it in a real browser. Three.js and TypeScript, with 8th Wall's engine for AR.
Modelled, rigged, rendered
From Vivarium, above. The ants are real geometry on a real skeleton, not sprites. Pick a caste below and drag it around, then watch the same three turn.
The minor worker, the one that does most of the work in a real colony. 44,859 triangles, three texture maps and a clearcoat pass for the wet look of chitin. All three castes ride the same 59 bone skeleton, which is what lets one animation drive the whole colony.
Worker · walking to camera ·
The hard part of insect walking is that the foot has to stay where it landed while the body moves over it. Get that wrong and the ant skates.
Turntable · silhouette check ·
Every model gets spun through a full circle before it is allowed near the game. It is the fastest way to catch a proportion that only reads from one angle.
Photographs in, AR asset out
Software I wrote that turns a few product photographs into a 3D asset a shopper can stand in their own room at true size. No scanning rig, no modelling contract, no per-model licence, and nothing leaves the building: every stage runs on one desktop. Below is a Shin Godzilla figure it made from four store photographs. Switch between what one photograph gives and what four give.
Four photographs. Shape from all four through a multi-view model, colour from the front, then each photograph aligned to the model by silhouette and painted on where the surface faces its camera. The red lines down the flanks and the tail tip ship as emission, so they glow in a dark room. About ten minutes on one graphics card.
Workflow · photographs, geometry, product asset ·
Left is the store photograph. Right is the model, rendered from the camera the software found for that photograph by matching silhouettes, not lined up by eye.
The stance, the glow lines and the claws land where they are in the picture. What the camera never saw is still the model's guess, and the page says so.
The software · Node and Python, local GPU ·
Each photograph is segmented, aligned to the model by silhouette, and projected onto the texture where the surface faces its camera.
A photograph whose pose does not match is refused rather than smeared on, and one whose colours refuse to correspond is refused too. The back view here is the same mould in another colourway, used for shape only.
Product demo · 3D and AR ·
A product page built as a demo of 3D in the browser: the sofa is a real model, not a photograph. Four upholsteries ride inside one glTF file, so changing the fabric swaps the material on the spot and the specification sheet rewrites itself to match.
No reload and no second download. On a phone the same page stands the sofa in your own room. The viewer is also packaged as a WordPress plugin and as a Squarespace injection.
Source codeOn GitHub
For developers and hiring managers. Each repository answers a question an interviewer would ask, and three of them run their tests on every push.
A job board for a contractor, with people in it: an owner, a crew, and a client who gets a revocable read-only link instead of an account.
Tenant isolation is a database rule rather than a habit, so the queries carry no org_id filter at all and 14 tests write them the careless way on purpose to prove nothing leaks. Not deployed: it wants a hosted Postgres.
The same calculator in Next.js and TypeScript, with the arithmetic pulled out as pure functions and tested hard: 61 tests, run on every push.
Writing them found two real bugs in the original, including a transfer tax computed as a flat percentage when the statute charges per five hundred dollars or part thereof.
A question in English becomes one Postgres query, shown to you before it runs against the city's inspection records. It publishes how often it is wrong: fifty fixed questions, graded on the rows they return, averaged over three runs. It scores 39%.
Low on purpose. The fifty include joins, aggregates and trap questions written to be failed. The simple ones pass eight times in ten, and it refuses the unanswerable ones four times in five. Most demos show the three questions they get right. The guard that checks each query was taken apart by an adversarial run and rebuilt.
The conversion tracking behind this site, written from scratch: a serverless collector, a private store, and a dashboard behind a key.
No third-party script and no cookies, so there is no consent banner to click. It is recording your visit right now.
A Brazilian Portuguese app: 240 cards on a spaced repetition schedule, native audio, and it keeps working in airplane mode.
Open the app Read the source
Game art generated on this desk rather than bought by the credit: a server that builds the workflows, a browser UI for the background cut and palette work, and a Blender pipeline that renders and captions a training set.
The cut and palette work happen client side so the original is never touched, and the training set teaches the model a specific look. It drives ComfyUI, Blender and kohya's trainer, which are about 32 GB and not mine, so the repository is the thousand lines that are.
Case studiesLonger form
Four of these had a problem in the middle that took longer than the rest of the build put together. These are those parts: what the obstacle was, what I tried, and what the thing still cannot do.
Sold Nearby · open data
New York State publishes no individual sale prices for Nassau or Suffolk at all. The way out was a table almost nobody reads: the state's own published ratio of assessment to sale price, per town, per year.
Read the noteThis site · verification
The preview I build in reports a hidden document, so IntersectionObserver never fires and every scroll-revealed thing looks broken whether it is or not. How I check a change without trusting my eyes.
Read the noteTrains Now · realtime
The MTA reports "stopped at 42 St", never a latitude. Sixty lines of protobuf decoding, then the published schedule to work out which two stations a moving train is between.
Read the notePhoto to 3D · AR
A reconstruction model hands back shape and nothing else, and rebuilds the studio floor as a slab of geometry under the product. Finding that floor by width rather than by density is the part I am proudest of.
Read the case study Read the sourceContactSay hello
I read everything that arrives. Tell me what you are trying to make and I will tell you honestly whether I am the right person to make it.
I am Don Florencio, and Workflo is the name I build under. Websites, small tools and games out of New York and New Jersey, mostly in plain HTML, CSS and JavaScript. Everything on this page I made, and the source for a good deal of it is on GitHub. Thanks for looking.
Workflo
Don Florencio